Home / 19,779.48-27,275.20-16,956.68

Finding the Fourth Proportional to 19,779.48, 27,275.20 and 16,956.68

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Solution

The fourth proportional to 19,779.48, 27,275.20 and 16,956.68 is: 23,382.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.48 : 27,275.20 = 16,956.68 : x
  2. Step 2: Convert to fraction form
    19,779.48/27,275.20 = 16,956.68/x
  3. Step 3: Cross multiply
    19,779.48x = 27,275.20 × 16,956.68
  4. Step 4: Simplify right side
    19,779.48x = 462,496,838.34
  5. Step 5: Solve for x
    x = 462,496,838.34/19,779.48
  6. Step 6: Final answer
    x = 23,382.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.